231122122201220 has 24 divisors (see below), whose sum is σ = 485359004836608. Its totient is φ = 92448363506400.

The previous prime is 231122122201199. The next prime is 231122122201231. The reversal of 231122122201220 is 22102221221132.

231122122201220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26418926 + ... + 34061765.

It is an arithmetic number, because the mean of its divisors is an integer number (20223291868192).

Almost surely, 2^{231122122201220} is an apocalyptic number.

231122122201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231122122201220 is an abundant number, since it is smaller than the sum of its proper divisors (254236882635388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231122122201220 is a wasteful number, since it uses less digits than its factorization.

231122122201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60671771 (or 60671769 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 231122122201220 its reverse (22102221221132), we get a palindrome (253224343422352).

The spelling of 231122122201220 in words is "two hundred thirty-one trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred one thousand, two hundred twenty".